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qemu/hw/i386/pc_piix.c
Chuck Zmudzinski 6bebd3f818 xen/pt: reserve PCI slot 2 for Intel igd-passthru 
Intel specifies that the Intel IGD must occupy slot 2 on the PCI bus,
as noted in docs/igd-assign.txt in the Qemu source code.

Currently, when the xl toolstack is used to configure a Xen HVM guest with
Intel IGD passthrough to the guest with the Qemu upstream device model,
a Qemu emulated PCI device will occupy slot 2 and the Intel IGD will occupy
a different slot. This problem often prevents the guest from booting.

The only available workarounds are not good: Configure Xen HVM guests to
use the old and no longer maintained Qemu traditional device model
available from xenbits.xen.org which does reserve slot 2 for the Intel
IGD or use the "pc" machine type instead of the "xenfv" machine type and
add the xen platform device at slot 3 using a command line option
instead of patching qemu to fix the "xenfv" machine type directly. The
second workaround causes some degredation in startup performance such as
a longer boot time and reduced resolution of the grub menu that is
displayed on the monitor. This patch avoids that reduced startup
performance when using the Qemu upstream device model for Xen HVM guests
configured with the igd-passthru=on option.

To implement this feature in the Qemu upstream device model for Xen HVM
guests, introduce the following new functions, types, and macros:

* XEN_PT_DEVICE_CLASS declaration, based on the existing TYPE_XEN_PT_DEVICE
* XEN_PT_DEVICE_GET_CLASS macro helper function for XEN_PT_DEVICE_CLASS
* typedef XenPTQdevRealize function pointer
* XEN_PCI_IGD_SLOT_MASK, the value of slot_reserved_mask to reserve slot 2
* xen_igd_reserve_slot and xen_igd_clear_slot functions

Michael Tsirkin:
* Introduce XEN_PCI_IGD_DOMAIN, XEN_PCI_IGD_BUS, XEN_PCI_IGD_DEV, and
  XEN_PCI_IGD_FN - use them to compute the value of XEN_PCI_IGD_SLOT_MASK

The new xen_igd_reserve_slot function uses the existing slot_reserved_mask
member of PCIBus to reserve PCI slot 2 for Xen HVM guests configured using
the xl toolstack with the gfx_passthru option enabled, which sets the
igd-passthru=on option to Qemu for the Xen HVM machine type.

The new xen_igd_reserve_slot function also needs to be implemented in
hw/xen/xen_pt_stub.c to prevent FTBFS during the link stage for the case
when Qemu is configured with --enable-xen and --disable-xen-pci-passthrough,
in which case it does nothing.

The new xen_igd_clear_slot function overrides qdev->realize of the parent
PCI device class to enable the Intel IGD to occupy slot 2 on the PCI bus
since slot 2 was reserved by xen_igd_reserve_slot when the PCI bus was
created in hw/i386/pc_piix.c for the case when igd-passthru=on.

Move the call to xen_host_pci_device_get, and the associated error
handling, from xen_pt_realize to the new xen_igd_clear_slot function to
initialize the device class and vendor values which enables the checks for
the Intel IGD to succeed. The verification that the host device is an
Intel IGD to be passed through is done by checking the domain, bus, slot,
and function values as well as by checking that gfx_passthru is enabled,
the device class is VGA, and the device vendor in Intel.

Signed-off-by: Chuck Zmudzinski <brchuckz@aol.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Message-Id: <b1b4a21fe9a600b1322742dda55a40e9961daa57.1674346505.git.brchuckz@aol.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
(cherry picked from commit 4f67543bb8)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2023-05-18 21:09:59 +03:00

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/*
* QEMU PC System Emulator
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include CONFIG_DEVICES
#include "qemu/units.h"
#include "hw/dma/i8257.h"
#include "hw/loader.h"
#include "hw/i386/x86.h"
#include "hw/i386/pc.h"
#include "hw/i386/apic.h"
#include "hw/pci-host/i440fx.h"
#include "hw/southbridge/piix.h"
#include "hw/display/ramfb.h"
#include "hw/firmware/smbios.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_ids.h"
#include "hw/usb.h"
#include "net/net.h"
#include "hw/ide/pci.h"
#include "hw/ide/piix.h"
#include "hw/irq.h"
#include "sysemu/kvm.h"
#include "hw/kvm/clock.h"
#include "hw/sysbus.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/xen/xen-x86.h"
#include "exec/memory.h"
#include "hw/acpi/acpi.h"
#include "hw/acpi/piix4.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "sysemu/xen.h"
#ifdef CONFIG_XEN
#include <xen/hvm/hvm_info_table.h>
#include "hw/xen/xen_pt.h"
#endif
#include "migration/global_state.h"
#include "migration/misc.h"
#include "sysemu/numa.h"
#include "hw/hyperv/vmbus-bridge.h"
#include "hw/mem/nvdimm.h"
#include "hw/i386/acpi-build.h"
#include "kvm/kvm-cpu.h"
#define MAX_IDE_BUS 2
#ifdef CONFIG_IDE_ISA
static const int ide_iobase[MAX_IDE_BUS] = { 0x1f0, 0x170 };
static const int ide_iobase2[MAX_IDE_BUS] = { 0x3f6, 0x376 };
static const int ide_irq[MAX_IDE_BUS] = { 14, 15 };
#endif
/* PC hardware initialisation */
static void pc_init1(MachineState *machine,
const char *host_type, const char *pci_type)
{
PCMachineState *pcms = PC_MACHINE(machine);
PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
X86MachineState *x86ms = X86_MACHINE(machine);
MemoryRegion *system_memory = get_system_memory();
MemoryRegion *system_io = get_system_io();
PCIBus *pci_bus;
ISABus *isa_bus;
int piix3_devfn = -1;
qemu_irq smi_irq;
GSIState *gsi_state;
BusState *idebus[MAX_IDE_BUS];
ISADevice *rtc_state;
MemoryRegion *ram_memory;
MemoryRegion *pci_memory;
MemoryRegion *rom_memory;
ram_addr_t lowmem;
uint64_t hole64_size;
DeviceState *i440fx_host;
/*
* Calculate ram split, for memory below and above 4G. It's a bit
* complicated for backward compatibility reasons ...
*
* - Traditional split is 3.5G (lowmem = 0xe0000000). This is the
* default value for max_ram_below_4g now.
*
* - Then, to gigabyte align the memory, we move the split to 3G
* (lowmem = 0xc0000000). But only in case we have to split in
* the first place, i.e. ram_size is larger than (traditional)
* lowmem. And for new machine types (gigabyte_align = true)
* only, for live migration compatibility reasons.
*
* - Next the max-ram-below-4g option was added, which allowed to
* reduce lowmem to a smaller value, to allow a larger PCI I/O
* window below 4G. qemu doesn't enforce gigabyte alignment here,
* but prints a warning.
*
* - Finally max-ram-below-4g got updated to also allow raising lowmem,
* so legacy non-PAE guests can get as much memory as possible in
* the 32bit address space below 4G.
*
* - Note that Xen has its own ram setup code in xen_ram_init(),
* called via xen_hvm_init_pc().
*
* Examples:
* qemu -M pc-1.7 -m 4G (old default) -> 3584M low, 512M high
* qemu -M pc -m 4G (new default) -> 3072M low, 1024M high
* qemu -M pc,max-ram-below-4g=2G -m 4G -> 2048M low, 2048M high
* qemu -M pc,max-ram-below-4g=4G -m 3968M -> 3968M low (=4G-128M)
*/
if (xen_enabled()) {
xen_hvm_init_pc(pcms, &ram_memory);
} else {
if (!pcms->max_ram_below_4g) {
pcms->max_ram_below_4g = 0xe0000000; /* default: 3.5G */
}
lowmem = pcms->max_ram_below_4g;
if (machine->ram_size >= pcms->max_ram_below_4g) {
if (pcmc->gigabyte_align) {
if (lowmem > 0xc0000000) {
lowmem = 0xc0000000;
}
if (lowmem & (1 * GiB - 1)) {
warn_report("Large machine and max_ram_below_4g "
"(%" PRIu64 ") not a multiple of 1G; "
"possible bad performance.",
pcms->max_ram_below_4g);
}
}
}
if (machine->ram_size >= lowmem) {
x86ms->above_4g_mem_size = machine->ram_size - lowmem;
x86ms->below_4g_mem_size = lowmem;
} else {
x86ms->above_4g_mem_size = 0;
x86ms->below_4g_mem_size = machine->ram_size;
}
}
pc_machine_init_sgx_epc(pcms);
x86_cpus_init(x86ms, pcmc->default_cpu_version);
if (pcmc->kvmclock_enabled) {
kvmclock_create(pcmc->kvmclock_create_always);
}
if (pcmc->pci_enabled) {
pci_memory = g_new(MemoryRegion, 1);
memory_region_init(pci_memory, NULL, "pci", UINT64_MAX);
rom_memory = pci_memory;
i440fx_host = qdev_new(host_type);
hole64_size = object_property_get_uint(OBJECT(i440fx_host),
PCI_HOST_PROP_PCI_HOLE64_SIZE,
&error_abort);
} else {
pci_memory = NULL;
rom_memory = system_memory;
i440fx_host = NULL;
hole64_size = 0;
}
pc_guest_info_init(pcms);
if (pcmc->smbios_defaults) {
MachineClass *mc = MACHINE_GET_CLASS(machine);
/* These values are guest ABI, do not change */
smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
mc->name, pcmc->smbios_legacy_mode,
pcmc->smbios_uuid_encoded,
pcms->smbios_entry_point_type);
}
/* allocate ram and load rom/bios */
if (!xen_enabled()) {
pc_memory_init(pcms, system_memory,
rom_memory, &ram_memory, hole64_size);
} else {
pc_system_flash_cleanup_unused(pcms);
if (machine->kernel_filename != NULL) {
/* For xen HVM direct kernel boot, load linux here */
xen_load_linux(pcms);
}
}
gsi_state = pc_gsi_create(&x86ms->gsi, pcmc->pci_enabled);
if (pcmc->pci_enabled) {
PIIX3State *piix3;
PCIDevice *pci_dev;
const char *type = xen_enabled() ? TYPE_PIIX3_XEN_DEVICE
: TYPE_PIIX3_DEVICE;
pci_bus = i440fx_init(pci_type,
i440fx_host,
system_memory, system_io, machine->ram_size,
x86ms->below_4g_mem_size,
x86ms->above_4g_mem_size,
pci_memory, ram_memory);
pcms->bus = pci_bus;
pci_dev = pci_create_simple_multifunction(pci_bus, -1, true, type);
piix3 = PIIX3_PCI_DEVICE(pci_dev);
piix3->pic = x86ms->gsi;
piix3_devfn = piix3->dev.devfn;
isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(piix3), "isa.0"));
} else {
pci_bus = NULL;
isa_bus = isa_bus_new(NULL, get_system_memory(), system_io,
&error_abort);
i8257_dma_init(isa_bus, 0);
pcms->hpet_enabled = false;
}
isa_bus_irqs(isa_bus, x86ms->gsi);
if (x86ms->pic == ON_OFF_AUTO_ON || x86ms->pic == ON_OFF_AUTO_AUTO) {
pc_i8259_create(isa_bus, gsi_state->i8259_irq);
}
if (pcmc->pci_enabled) {
ioapic_init_gsi(gsi_state, "i440fx");
}
if (tcg_enabled()) {
x86_register_ferr_irq(x86ms->gsi[13]);
}
pc_vga_init(isa_bus, pcmc->pci_enabled ? pci_bus : NULL);
assert(pcms->vmport != ON_OFF_AUTO__MAX);
if (pcms->vmport == ON_OFF_AUTO_AUTO) {
pcms->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
}
/* init basic PC hardware */
pc_basic_device_init(pcms, isa_bus, x86ms->gsi, &rtc_state, true,
0x4);
pc_nic_init(pcmc, isa_bus, pci_bus);
if (pcmc->pci_enabled) {
PCIDevice *dev;
dev = pci_create_simple(pci_bus, piix3_devfn + 1, TYPE_PIIX3_IDE);
pci_ide_create_devs(dev);
idebus[0] = qdev_get_child_bus(&dev->qdev, "ide.0");
idebus[1] = qdev_get_child_bus(&dev->qdev, "ide.1");
pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
}
#ifdef CONFIG_IDE_ISA
else {
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
int i;
ide_drive_get(hd, ARRAY_SIZE(hd));
for (i = 0; i < MAX_IDE_BUS; i++) {
ISADevice *dev;
char busname[] = "ide.0";
dev = isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i],
ide_irq[i],
hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
/*
* The ide bus name is ide.0 for the first bus and ide.1 for the
* second one.
*/
busname[4] = '0' + i;
idebus[i] = qdev_get_child_bus(DEVICE(dev), busname);
}
pc_cmos_init(pcms, idebus[0], idebus[1], rtc_state);
}
#endif
if (pcmc->pci_enabled && machine_usb(machine)) {
pci_create_simple(pci_bus, piix3_devfn + 2, "piix3-usb-uhci");
}
if (pcmc->pci_enabled && x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) {
PCIDevice *piix4_pm;
smi_irq = qemu_allocate_irq(pc_acpi_smi_interrupt, first_cpu, 0);
piix4_pm = pci_new(piix3_devfn + 3, TYPE_PIIX4_PM);
qdev_prop_set_uint32(DEVICE(piix4_pm), "smb_io_base", 0xb100);
qdev_prop_set_bit(DEVICE(piix4_pm), "smm-enabled",
x86_machine_is_smm_enabled(x86ms));
pci_realize_and_unref(piix4_pm, pci_bus, &error_fatal);
qdev_connect_gpio_out(DEVICE(piix4_pm), 0, x86ms->gsi[9]);
qdev_connect_gpio_out_named(DEVICE(piix4_pm), "smi-irq", 0, smi_irq);
pcms->smbus = I2C_BUS(qdev_get_child_bus(DEVICE(piix4_pm), "i2c"));
/* TODO: Populate SPD eeprom data. */
smbus_eeprom_init(pcms->smbus, 8, NULL, 0);
object_property_add_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
TYPE_HOTPLUG_HANDLER,
(Object **)&x86ms->acpi_dev,
object_property_allow_set_link,
OBJ_PROP_LINK_STRONG);
object_property_set_link(OBJECT(machine), PC_MACHINE_ACPI_DEVICE_PROP,
OBJECT(piix4_pm), &error_abort);
}
if (machine->nvdimms_state->is_enabled) {
nvdimm_init_acpi_state(machine->nvdimms_state, system_io,
x86_nvdimm_acpi_dsmio,
x86ms->fw_cfg, OBJECT(pcms));
}
}
/* Looking for a pc_compat_2_4() function? It doesn't exist.
* pc_compat_*() functions that run on machine-init time and
* change global QEMU state are deprecated. Please don't create
* one, and implement any pc-*-2.4 (and newer) compat code in
* hw_compat_*, pc_compat_*, or * pc_*_machine_options().
*/
static void pc_compat_2_3_fn(MachineState *machine)
{
X86MachineState *x86ms = X86_MACHINE(machine);
if (kvm_enabled()) {
x86ms->smm = ON_OFF_AUTO_OFF;
}
}
static void pc_compat_2_2_fn(MachineState *machine)
{
pc_compat_2_3_fn(machine);
}
static void pc_compat_2_1_fn(MachineState *machine)
{
pc_compat_2_2_fn(machine);
x86_cpu_change_kvm_default("svm", NULL);
}
static void pc_compat_2_0_fn(MachineState *machine)
{
pc_compat_2_1_fn(machine);
}
static void pc_compat_1_7_fn(MachineState *machine)
{
pc_compat_2_0_fn(machine);
x86_cpu_change_kvm_default("x2apic", NULL);
}
static void pc_compat_1_6_fn(MachineState *machine)
{
pc_compat_1_7_fn(machine);
}
static void pc_compat_1_5_fn(MachineState *machine)
{
pc_compat_1_6_fn(machine);
}
static void pc_compat_1_4_fn(MachineState *machine)
{
pc_compat_1_5_fn(machine);
}
#ifdef CONFIG_ISAPC
static void pc_init_isa(MachineState *machine)
{
pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
}
#endif
#ifdef CONFIG_XEN
static void pc_xen_hvm_init_pci(MachineState *machine)
{
const char *pci_type = xen_igd_gfx_pt_enabled() ?
TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE : TYPE_I440FX_PCI_DEVICE;
pc_init1(machine,
TYPE_I440FX_PCI_HOST_BRIDGE,
pci_type);
}
static void pc_xen_hvm_init(MachineState *machine)
{
PCMachineState *pcms = PC_MACHINE(machine);
if (!xen_enabled()) {
error_report("xenfv machine requires the xen accelerator");
exit(1);
}
pc_xen_hvm_init_pci(machine);
xen_igd_reserve_slot(pcms->bus);
pci_create_simple(pcms->bus, -1, "xen-platform");
}
#endif
#define DEFINE_I440FX_MACHINE(suffix, name, compatfn, optionfn) \
static void pc_init_##suffix(MachineState *machine) \
{ \
void (*compat)(MachineState *m) = (compatfn); \
if (compat) { \
compat(machine); \
} \
pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
TYPE_I440FX_PCI_DEVICE); \
} \
DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
static void pc_i440fx_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pcmc->default_nic_model = "e1000";
pcmc->pci_root_uid = 0;
m->family = "pc_piix";
m->desc = "Standard PC (i440FX + PIIX, 1996)";
m->default_machine_opts = "firmware=bios-256k.bin";
m->default_display = "std";
machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
machine_class_allow_dynamic_sysbus_dev(m, TYPE_VMBUS_BRIDGE);
}
static void pc_i440fx_7_2_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_machine_options(m);
m->alias = "pc";
m->is_default = true;
pcmc->default_cpu_version = 1;
}
DEFINE_I440FX_MACHINE(v7_2, "pc-i440fx-7.2", NULL,
pc_i440fx_7_2_machine_options);
static void pc_i440fx_7_1_machine_options(MachineClass *m)
{
pc_i440fx_7_2_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_7_1, hw_compat_7_1_len);
compat_props_add(m->compat_props, pc_compat_7_1, pc_compat_7_1_len);
}
DEFINE_I440FX_MACHINE(v7_1, "pc-i440fx-7.1", NULL,
pc_i440fx_7_1_machine_options);
static void pc_i440fx_7_0_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_7_1_machine_options(m);
m->alias = NULL;
m->is_default = false;
pcmc->enforce_amd_1tb_hole = false;
compat_props_add(m->compat_props, hw_compat_7_0, hw_compat_7_0_len);
compat_props_add(m->compat_props, pc_compat_7_0, pc_compat_7_0_len);
}
DEFINE_I440FX_MACHINE(v7_0, "pc-i440fx-7.0", NULL,
pc_i440fx_7_0_machine_options);
static void pc_i440fx_6_2_machine_options(MachineClass *m)
{
pc_i440fx_7_0_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_6_2, hw_compat_6_2_len);
compat_props_add(m->compat_props, pc_compat_6_2, pc_compat_6_2_len);
}
DEFINE_I440FX_MACHINE(v6_2, "pc-i440fx-6.2", NULL,
pc_i440fx_6_2_machine_options);
static void pc_i440fx_6_1_machine_options(MachineClass *m)
{
pc_i440fx_6_2_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_6_1, hw_compat_6_1_len);
compat_props_add(m->compat_props, pc_compat_6_1, pc_compat_6_1_len);
m->smp_props.prefer_sockets = true;
}
DEFINE_I440FX_MACHINE(v6_1, "pc-i440fx-6.1", NULL,
pc_i440fx_6_1_machine_options);
static void pc_i440fx_6_0_machine_options(MachineClass *m)
{
pc_i440fx_6_1_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_6_0, hw_compat_6_0_len);
compat_props_add(m->compat_props, pc_compat_6_0, pc_compat_6_0_len);
}
DEFINE_I440FX_MACHINE(v6_0, "pc-i440fx-6.0", NULL,
pc_i440fx_6_0_machine_options);
static void pc_i440fx_5_2_machine_options(MachineClass *m)
{
pc_i440fx_6_0_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_5_2, hw_compat_5_2_len);
compat_props_add(m->compat_props, pc_compat_5_2, pc_compat_5_2_len);
}
DEFINE_I440FX_MACHINE(v5_2, "pc-i440fx-5.2", NULL,
pc_i440fx_5_2_machine_options);
static void pc_i440fx_5_1_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_5_2_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_5_1, hw_compat_5_1_len);
compat_props_add(m->compat_props, pc_compat_5_1, pc_compat_5_1_len);
pcmc->kvmclock_create_always = false;
pcmc->pci_root_uid = 1;
}
DEFINE_I440FX_MACHINE(v5_1, "pc-i440fx-5.1", NULL,
pc_i440fx_5_1_machine_options);
static void pc_i440fx_5_0_machine_options(MachineClass *m)
{
pc_i440fx_5_1_machine_options(m);
m->alias = NULL;
m->is_default = false;
m->numa_mem_supported = true;
compat_props_add(m->compat_props, hw_compat_5_0, hw_compat_5_0_len);
compat_props_add(m->compat_props, pc_compat_5_0, pc_compat_5_0_len);
m->auto_enable_numa_with_memdev = false;
}
DEFINE_I440FX_MACHINE(v5_0, "pc-i440fx-5.0", NULL,
pc_i440fx_5_0_machine_options);
static void pc_i440fx_4_2_machine_options(MachineClass *m)
{
pc_i440fx_5_0_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_4_2, hw_compat_4_2_len);
compat_props_add(m->compat_props, pc_compat_4_2, pc_compat_4_2_len);
}
DEFINE_I440FX_MACHINE(v4_2, "pc-i440fx-4.2", NULL,
pc_i440fx_4_2_machine_options);
static void pc_i440fx_4_1_machine_options(MachineClass *m)
{
pc_i440fx_4_2_machine_options(m);
m->alias = NULL;
m->is_default = false;
compat_props_add(m->compat_props, hw_compat_4_1, hw_compat_4_1_len);
compat_props_add(m->compat_props, pc_compat_4_1, pc_compat_4_1_len);
}
DEFINE_I440FX_MACHINE(v4_1, "pc-i440fx-4.1", NULL,
pc_i440fx_4_1_machine_options);
static void pc_i440fx_4_0_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_4_1_machine_options(m);
m->alias = NULL;
m->is_default = false;
pcmc->default_cpu_version = CPU_VERSION_LEGACY;
compat_props_add(m->compat_props, hw_compat_4_0, hw_compat_4_0_len);
compat_props_add(m->compat_props, pc_compat_4_0, pc_compat_4_0_len);
}
DEFINE_I440FX_MACHINE(v4_0, "pc-i440fx-4.0", NULL,
pc_i440fx_4_0_machine_options);
static void pc_i440fx_3_1_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_4_0_machine_options(m);
m->is_default = false;
m->smbus_no_migration_support = true;
m->alias = NULL;
pcmc->pvh_enabled = false;
compat_props_add(m->compat_props, hw_compat_3_1, hw_compat_3_1_len);
compat_props_add(m->compat_props, pc_compat_3_1, pc_compat_3_1_len);
}
DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL,
pc_i440fx_3_1_machine_options);
static void pc_i440fx_3_0_machine_options(MachineClass *m)
{
pc_i440fx_3_1_machine_options(m);
compat_props_add(m->compat_props, hw_compat_3_0, hw_compat_3_0_len);
compat_props_add(m->compat_props, pc_compat_3_0, pc_compat_3_0_len);
}
DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL,
pc_i440fx_3_0_machine_options);
static void pc_i440fx_2_12_machine_options(MachineClass *m)
{
pc_i440fx_3_0_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_12, hw_compat_2_12_len);
compat_props_add(m->compat_props, pc_compat_2_12, pc_compat_2_12_len);
}
DEFINE_I440FX_MACHINE(v2_12, "pc-i440fx-2.12", NULL,
pc_i440fx_2_12_machine_options);
static void pc_i440fx_2_11_machine_options(MachineClass *m)
{
pc_i440fx_2_12_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_11, hw_compat_2_11_len);
compat_props_add(m->compat_props, pc_compat_2_11, pc_compat_2_11_len);
}
DEFINE_I440FX_MACHINE(v2_11, "pc-i440fx-2.11", NULL,
pc_i440fx_2_11_machine_options);
static void pc_i440fx_2_10_machine_options(MachineClass *m)
{
pc_i440fx_2_11_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_10, hw_compat_2_10_len);
compat_props_add(m->compat_props, pc_compat_2_10, pc_compat_2_10_len);
m->auto_enable_numa_with_memhp = false;
}
DEFINE_I440FX_MACHINE(v2_10, "pc-i440fx-2.10", NULL,
pc_i440fx_2_10_machine_options);
static void pc_i440fx_2_9_machine_options(MachineClass *m)
{
pc_i440fx_2_10_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_9, hw_compat_2_9_len);
compat_props_add(m->compat_props, pc_compat_2_9, pc_compat_2_9_len);
}
DEFINE_I440FX_MACHINE(v2_9, "pc-i440fx-2.9", NULL,
pc_i440fx_2_9_machine_options);
static void pc_i440fx_2_8_machine_options(MachineClass *m)
{
pc_i440fx_2_9_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_8, hw_compat_2_8_len);
compat_props_add(m->compat_props, pc_compat_2_8, pc_compat_2_8_len);
}
DEFINE_I440FX_MACHINE(v2_8, "pc-i440fx-2.8", NULL,
pc_i440fx_2_8_machine_options);
static void pc_i440fx_2_7_machine_options(MachineClass *m)
{
pc_i440fx_2_8_machine_options(m);
compat_props_add(m->compat_props, hw_compat_2_7, hw_compat_2_7_len);
compat_props_add(m->compat_props, pc_compat_2_7, pc_compat_2_7_len);
}
DEFINE_I440FX_MACHINE(v2_7, "pc-i440fx-2.7", NULL,
pc_i440fx_2_7_machine_options);
static void pc_i440fx_2_6_machine_options(MachineClass *m)
{
X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_7_machine_options(m);
pcmc->legacy_cpu_hotplug = true;
x86mc->fwcfg_dma_enabled = false;
compat_props_add(m->compat_props, hw_compat_2_6, hw_compat_2_6_len);
compat_props_add(m->compat_props, pc_compat_2_6, pc_compat_2_6_len);
}
DEFINE_I440FX_MACHINE(v2_6, "pc-i440fx-2.6", NULL,
pc_i440fx_2_6_machine_options);
static void pc_i440fx_2_5_machine_options(MachineClass *m)
{
X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
pc_i440fx_2_6_machine_options(m);
x86mc->save_tsc_khz = false;
m->legacy_fw_cfg_order = 1;
compat_props_add(m->compat_props, hw_compat_2_5, hw_compat_2_5_len);
compat_props_add(m->compat_props, pc_compat_2_5, pc_compat_2_5_len);
}
DEFINE_I440FX_MACHINE(v2_5, "pc-i440fx-2.5", NULL,
pc_i440fx_2_5_machine_options);
static void pc_i440fx_2_4_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_5_machine_options(m);
m->hw_version = "2.4.0";
pcmc->broken_reserved_end = true;
compat_props_add(m->compat_props, hw_compat_2_4, hw_compat_2_4_len);
compat_props_add(m->compat_props, pc_compat_2_4, pc_compat_2_4_len);
}
DEFINE_I440FX_MACHINE(v2_4, "pc-i440fx-2.4", NULL,
pc_i440fx_2_4_machine_options)
static void pc_i440fx_2_3_machine_options(MachineClass *m)
{
pc_i440fx_2_4_machine_options(m);
m->hw_version = "2.3.0";
compat_props_add(m->compat_props, hw_compat_2_3, hw_compat_2_3_len);
compat_props_add(m->compat_props, pc_compat_2_3, pc_compat_2_3_len);
}
DEFINE_I440FX_MACHINE(v2_3, "pc-i440fx-2.3", pc_compat_2_3_fn,
pc_i440fx_2_3_machine_options);
static void pc_i440fx_2_2_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_3_machine_options(m);
m->hw_version = "2.2.0";
m->default_machine_opts = "firmware=bios-256k.bin,suppress-vmdesc=on";
compat_props_add(m->compat_props, hw_compat_2_2, hw_compat_2_2_len);
compat_props_add(m->compat_props, pc_compat_2_2, pc_compat_2_2_len);
pcmc->rsdp_in_ram = false;
}
DEFINE_I440FX_MACHINE(v2_2, "pc-i440fx-2.2", pc_compat_2_2_fn,
pc_i440fx_2_2_machine_options);
static void pc_i440fx_2_1_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_2_machine_options(m);
m->hw_version = "2.1.0";
m->default_display = NULL;
compat_props_add(m->compat_props, hw_compat_2_1, hw_compat_2_1_len);
compat_props_add(m->compat_props, pc_compat_2_1, pc_compat_2_1_len);
pcmc->smbios_uuid_encoded = false;
pcmc->enforce_aligned_dimm = false;
}
DEFINE_I440FX_MACHINE(v2_1, "pc-i440fx-2.1", pc_compat_2_1_fn,
pc_i440fx_2_1_machine_options);
static void pc_i440fx_2_0_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_1_machine_options(m);
m->hw_version = "2.0.0";
compat_props_add(m->compat_props, pc_compat_2_0, pc_compat_2_0_len);
pcmc->smbios_legacy_mode = true;
pcmc->has_reserved_memory = false;
/* This value depends on the actual DSDT and SSDT compiled into
* the source QEMU; unfortunately it depends on the binary and
* not on the machine type, so we cannot make pc-i440fx-1.7 work on
* both QEMU 1.7 and QEMU 2.0.
*
* Large variations cause migration to fail for more than one
* consecutive value of the "-smp" maxcpus option.
*
* For small variations of the kind caused by different iasl versions,
* the 4k rounding usually leaves slack. However, there could be still
* one or two values that break. For QEMU 1.7 and QEMU 2.0 the
* slack is only ~10 bytes before one "-smp maxcpus" value breaks!
*
* 6652 is valid for QEMU 2.0, the right value for pc-i440fx-1.7 on
* QEMU 1.7 it is 6414. For RHEL/CentOS 7.0 it is 6418.
*/
pcmc->legacy_acpi_table_size = 6652;
pcmc->acpi_data_size = 0x10000;
}
DEFINE_I440FX_MACHINE(v2_0, "pc-i440fx-2.0", pc_compat_2_0_fn,
pc_i440fx_2_0_machine_options);
static void pc_i440fx_1_7_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_2_0_machine_options(m);
m->hw_version = "1.7.0";
m->default_machine_opts = NULL;
m->option_rom_has_mr = true;
m->deprecation_reason = "old and unattended - use a newer version instead";
compat_props_add(m->compat_props, pc_compat_1_7, pc_compat_1_7_len);
pcmc->smbios_defaults = false;
pcmc->gigabyte_align = false;
pcmc->legacy_acpi_table_size = 6414;
}
DEFINE_I440FX_MACHINE(v1_7, "pc-i440fx-1.7", pc_compat_1_7_fn,
pc_i440fx_1_7_machine_options);
static void pc_i440fx_1_6_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
pc_i440fx_1_7_machine_options(m);
m->hw_version = "1.6.0";
m->rom_file_has_mr = false;
compat_props_add(m->compat_props, pc_compat_1_6, pc_compat_1_6_len);
pcmc->has_acpi_build = false;
}
DEFINE_I440FX_MACHINE(v1_6, "pc-i440fx-1.6", pc_compat_1_6_fn,
pc_i440fx_1_6_machine_options);
static void pc_i440fx_1_5_machine_options(MachineClass *m)
{
pc_i440fx_1_6_machine_options(m);
m->hw_version = "1.5.0";
compat_props_add(m->compat_props, pc_compat_1_5, pc_compat_1_5_len);
}
DEFINE_I440FX_MACHINE(v1_5, "pc-i440fx-1.5", pc_compat_1_5_fn,
pc_i440fx_1_5_machine_options);
static void pc_i440fx_1_4_machine_options(MachineClass *m)
{
pc_i440fx_1_5_machine_options(m);
m->hw_version = "1.4.0";
compat_props_add(m->compat_props, pc_compat_1_4, pc_compat_1_4_len);
}
DEFINE_I440FX_MACHINE(v1_4, "pc-i440fx-1.4", pc_compat_1_4_fn,
pc_i440fx_1_4_machine_options);
#ifdef CONFIG_ISAPC
static void isapc_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
m->desc = "ISA-only PC";
m->max_cpus = 1;
m->option_rom_has_mr = true;
m->rom_file_has_mr = false;
pcmc->pci_enabled = false;
pcmc->has_acpi_build = false;
pcmc->smbios_defaults = false;
pcmc->gigabyte_align = false;
pcmc->smbios_legacy_mode = true;
pcmc->has_reserved_memory = false;
pcmc->default_nic_model = "ne2k_isa";
m->default_cpu_type = X86_CPU_TYPE_NAME("486");
}
DEFINE_PC_MACHINE(isapc, "isapc", pc_init_isa,
isapc_machine_options);
#endif
#ifdef CONFIG_XEN
static void xenfv_4_2_machine_options(MachineClass *m)
{
pc_i440fx_4_2_machine_options(m);
m->desc = "Xen Fully-virtualized PC";
m->max_cpus = HVM_MAX_VCPUS;
m->default_machine_opts = "accel=xen,suppress-vmdesc=on";
}
DEFINE_PC_MACHINE(xenfv_4_2, "xenfv-4.2", pc_xen_hvm_init,
xenfv_4_2_machine_options);
static void xenfv_3_1_machine_options(MachineClass *m)
{
pc_i440fx_3_1_machine_options(m);
m->desc = "Xen Fully-virtualized PC";
m->alias = "xenfv";
m->max_cpus = HVM_MAX_VCPUS;
m->default_machine_opts = "accel=xen,suppress-vmdesc=on";
}
DEFINE_PC_MACHINE(xenfv, "xenfv-3.1", pc_xen_hvm_init,
xenfv_3_1_machine_options);
#endif
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